Control emission of EFFECTIVE_PLATFORM_NAME by the Xcode generator.
It is required for building the same target with multiple SDKs. A common use case is the parallel use of iphoneos and iphonesimulator SDKs.
Three different states possible that control when the Xcode generator emits the EFFECTIVE_PLATFORM_NAME variable:
Note
When this behavior is enable for generated Xcode projects, the EFFECTIVE_PLATFORM_NAME variable will leak into Generator expressions like TARGET_FILE and will render those mostly unusable.